Finally abstracted constants properly. Changed how the event module works; wasn't really abstract before. Removed libs we're not going to use: native, signal.

src/modules/timer/sdl/wrap_Timer.cpp

@@ -91,7 +91,6 @@ namespace sdl
 		w.flags = MODULE_T;
 		w.functions = functions;
 		w.types = 0;
-		w.constants = 0;
 
 		return luax_register_module(L, w);
 	}